FormDataEvent.window.js

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This WPT test may be referenced by the following Test IDs:
- /html/semantics/forms/form-submission-0/FormDataEvent.window.html - WPT Dashboard Interop Dashboard

// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#the-formdataevent-interface

test(() => {

  let fd = new FormData();

  assert_throws_js(TypeError, () => { FormDataEvent('', {formData:fd}) }, "Calling FormDataEvent constructor without 'new' must throw");

  assert_throws_js(TypeError, () => { new FormDataEvent() }, '0 arguments');

  assert_throws_js(TypeError, () => { new FormDataEvent('foo') }, '1 argument');

  assert_throws_js(TypeError, () => { new FormDataEvent(fd, fd) }, '2 invalid arguments');

  assert_throws_js(TypeError, () => { new FormDataEvent('foo', null) }, 'Null dictionary');

  assert_throws_js(TypeError, () => { new FormDataEvent('foo', undefined) }, 'Undefined dictionary');

  assert_throws_js(TypeError, () => { new FormDataEvent('foo', { formData: null }) }, 'Null formData');

  assert_throws_js(TypeError, () => { new FormDataEvent('foo', { formData: undefined }) }, 'Undefined formData');

  assert_throws_js(TypeError, () => { new FormDataEvent('foo', { formData: 'bar' }) }, 'Wrong type of formData');

}, 'Failing FormDataEvent constructor');

test(() => {

  let fd = new FormData();

  let event = new FormDataEvent('bar', { formData: fd, bubbles: true });

  assert_equals(event.formData, fd);

  assert_true(event.bubbles);

}, 'Successful FormDataEvent constructor');